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A Python wrapper for the DQED constrained nonlinear optimization code

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README.rst

PyDQED - A Python wrapper for the DQED constrained nonlinear optimization code

Introduction

PyDQED provides a means for Python code to utilize DQED, a bounded, constrained nonlinear optimization code. DQED is publicly available, and is distributed with PyDQED. PyDQED provides a Python extension type for DQED, which in turn provides a Pythonic means of setting the solver options, providing residual and jacobian functions, and running the solver.

License

Copyright (c) 2011 by Joshua W. Allen (jwallen@mit.edu).

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Dependencies

PyDQED has been tested on Python versions 2.5 and 2.6. It may or may not work for other Python versions.

There are several Python dependencies that you must install before installing PyDQED:

  • Python (versions 2.5.x and 2.6.x are known to work)
  • NumPy (version 1.3.0 or later is recommended)
  • Cython (version 0.12.1 or later is recommended)

In addition, you will also need a Fortran compiler and a C compiler that produce object files that can interoperate. The gfortran and gcc compiles from the GNU Compiler Collection are known to work. On Windows the MinGW compiler collection provides these compilers.

The code for DQED has been provided with the PyDQED package. The license for DQED is different than that of the PyDQED wrapper code. You are responsible for knowing and abiding by all licenses associated with DQED as well as with PyDQED.

Installation

Windows

The provided batch script will compile DQED and the PyDQED wrapper code. This script presumes that you have the 32-bit version of the MinGW C and Fortran compilers installed. Once you have run the batch script, you can install PyDQED into your Python packages if you desire by running the following command from the base package directory:

> python setup.py install

Linux

A Makefile has been provided that can be used to compile DQED and the PyDQED wrapper code. To use, invoke the following command from the base package directory:

$ make

This command will build PyDQED in-place, rather than installing it to your Python package directory. If you wish to formally install PyDQED, run the following command from the base package directory after the make command (you may need root privileges for this):

# python setup.py install
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